Design of Testing & Identification System for Recovery Material of Launch Control Device of Certain Missile

2014 ◽  
Vol 1037 ◽  
pp. 270-273
Author(s):  
Xue Dong Xue ◽  
Xu De Cheng ◽  
Bing Xu ◽  
Yuan Zheng ◽  
Wei Liu

This article presents a method for testing and identification of a recovery material of certain missile, systematically analyzes the diagnostic approach and technology of PCB faults, expounds in detail design concept of the system, sets forth the solution using C8051F020 chip as microprocessor and testing of analog and digital I/O with built-in converter, contrives polarity discrimination circuit, provides software design process and main program by means of design thinking of modularized software, which help increasing program reliability and lowering development cost. The experimentation proves that this system is able to precisely position the faulty module of PCB to be identified, as well as make correct and reasonable opinion for maintenance. The design method and concept of this article is of significant value for reference in the research and development of similar testing and identification system.

2013 ◽  
Vol 457-458 ◽  
pp. 872-877
Author(s):  
Yan Xin Yu ◽  
Rong Chun Sun

Based on the principle of ultrasonic transit time ranging, this article describes that the microcontroller is used as the core to develop the ultrasonic distance-measurement automobile-reversing radar control system. The system includes both hardware and software parts. The hardware part mainly consist single-chip control circuit, ultrasonic transmitting and receiving circuits, temperature compensation circuit and voice alarm circuit. The software design part of the system was divided into several function modules with modular design method, such as main program module, temperature measurement module, voice alarm module and so on. The main program was responsible for dispatching management all the modules. Experiments show that this system can reach design requirement and has high value and broad application prospects.


2014 ◽  
Vol 584-586 ◽  
pp. 19-25 ◽  
Author(s):  
Long Zhang ◽  
Yu Bo Gao ◽  
Yu Bo Gao ◽  
Yu Bo Gao

With development of nonlinear construction theory and digital technology, parameterization construction design has drawn extensive attention in construction industry as a new method of solving complex problems in construction. Parameterization design method has broken through the qualitative and transcendental design methods for design issues in the traditional design process. After getting rid of the form constraint of Euclidean geometry, generation of construction space and form is on the judgment basis of quantized data. Such bottom-up dynamic design process has broken through imprisonment of traditional form and construction design has returned to the original point of rational creation. In this paper, a certain foundation is laid for theoretical researches on development, influence and future of parameterization design from the aspects of parameterization design concept, tool, scheme generation, its influence on design thinking, etc.


2020 ◽  
Author(s):  
Deógenes Silva Junior ◽  
Roberto Pereira

In collaborative software design scenarios, Consolidation is a key process for contributions from diverse participants to be understood, reviewed, and integrated into a coherent set of design objects. However, this process is complex because it acts at different times and objects throughout a design process, and few works in literature are devoted to addressing this process and its inherent complexity. This paper presents an exploratory case study to investigate Consolidation in a Design Thinking-inspired process. As results, remarks about dimensions of Consolidation, activities where Consolidation occurred and strategies used were identified, which can be a source for designing technical features for supporting Consolidation practices.


2014 ◽  
Vol 556-562 ◽  
pp. 2642-2645
Author(s):  
Wei Cong Gao ◽  
Yi Qing Liu ◽  
Xiu Guang Wang

Real-time multi-task embedded operating system is widely used in intelligent electronic devices. But the software design method with embedded OS is not familiar to developers in power system. So this paper depicts a sophisticated solution to overcome the difficulty in embedded software design. An overall software design is achieved in detail, and the emphasis is software architecture design, interrupt and task allocation and communication interface. After field validation, the measurement-control devices designed by this design solution have been proven that it is well adapted to the new requirements of Smart Grid.


2015 ◽  
Vol 734 ◽  
pp. 893-896
Author(s):  
Yan Chen ◽  
Fang Shen ◽  
Rong Hu

The article has built a control system of 10kW photovoltaic grid-connected inverter based on high-performance 32-bit DSP processor TMS320F2808 of TI company, and has designed the software overall structure of main control part of control system by using modularized design method, has given the interrupt timing priority and software design process in the main control part of the control system of photovoltaic grid-connected inverter.


Author(s):  
Timur Smetani ◽  
Elizaveta Gureva ◽  
Vyacheslav Andreev ◽  
Natalya Tarasova ◽  
Nikolai Andree

The article discusses methods for optimizing the design of the Neutron Converter research plant design with parameters that are most suitable for a particular consumer. 38 similar plant structures with different materials and sources were calculated, on the basis of which the most optimal options were found. As part of the interaction between OKBM Afrikantov JSC and the Nizhny Novgorod State Technical University named after R. E. Alekseev, the Neutron Converter research plant was designed and assembled. The universal neutron converter is a device for converting a stream of fast neutrons emitted by isotopic sources into a "standardized" value of flux density with known parameters in the volume of the central part of the product, which is the working part of the universal neutron converter. To supply neutron converters to other customer organizations (universities, research organizations and collective centers), it is necessary to take into account the experience of operating an existing facility, as well as rationalize the design process of each specific instance in accordance with the requirements of the customer.


1992 ◽  
Vol 25 (25) ◽  
pp. 263-265
Author(s):  
B.R. Andrievsky ◽  
A.A. Vasiljev ◽  
V.N. Utkin

2021 ◽  
Vol 11 (7) ◽  
pp. 3266
Author(s):  
Insub Choi ◽  
Dongwon Kim ◽  
Junhee Kim

Under high gravity loads, steel double-beam floor systems need to be reinforced by beam-end concrete panels to reduce the material quantity since rotational constraints from the concrete panel can decrease the moment demand by inducing a negative moment at the ends of the beams. However, the optimal design process for the material quantity of steel beams requires a time-consuming iterative analysis for the entire floor system while especially keeping in consideration the rotational constraints in composite connections between the concrete panel and steel beams. This study aimed to develop an optimal design method with the LM (Length-Moment) index for the steel double-beam floor system to minimize material quantity without the iterative design process. The LM index is an indicator that can select a minimum cross-section of the steel beams in consideration of the flexural strength by lateral-torsional buckling. To verify the proposed design method, the material quantities between the proposed and code-based design methods were compared at various gravity loads. The proposed design method successfully optimized the material quantity of the steel double-beam floor systems without the iterative analysis by simply choosing the LM index of the steel beams that can minimize objective function while satisfying the safety-related constraint conditions. In particular, under the high gravity loads, the proposed design method was superb at providing a quantity-optimized design option. Thus, the proposed optimal design method can be an alternative for designing the steel double-beam floor system.


2016 ◽  
Vol 28 (6) ◽  
pp. 394-426 ◽  
Author(s):  
Maryam Razavian ◽  
Antony Tang ◽  
Rafael Capilla ◽  
Patricia Lago

Author(s):  
Jan Schumann ◽  
Ulrich Harbecke ◽  
Daniel Sahnen ◽  
Thomas Polklas ◽  
Peter Jeschke ◽  
...  

The subject of the presented paper is the validation of a design method for HP and IP steam turbine stages. Common design processes have been operating with simplified design methods in order to quickly obtain feasible stage designs. Therefore, inaccuracies due to assumptions in the underlying methods have to be accepted. The focus of this work is to quantify the inaccuracy of a simplified design method compared to 3D Computational Fluid Dynamics (CFD) simulations. Short computing time is very convenient in preliminary design; therefore, common design methods work with a large degree of simplification. The origin of the presented analysis is a mean line design process, dealing with repeating stage conditions. Two features of the preliminary design are the stage efficiency, based on loss correlations, and the mechanical strength, obtained by using the beam theory. Due to these simplifications, only a few input parameters are necessary to define the primal stage geometry and hence, the optimal design can easily be found. In addition, by using an implemented law to take the radial equilibrium into account, the appropriate twist of the blading can be defined. However, in comparison to the real radial distribution of flow angles, this method implies inaccuracies, especially in regions of secondary flow. In these regions, twisted blades, developed by using the simplified radial equilibrium, will be exposed to a three-dimensional flow, which is not considered in the design process. The analyzed design cases show that discrepancies at the hub and shroud section do exist, but have minor effects. Even the shroud section, with its thinner leading-edge, is not vulnerable to these unanticipated flow angles.


Sign in / Sign up

Export Citation Format

Share Document